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A platform for research: civil engineering, architecture and urbanism
High-performance concrete accelerator and preparation method thereof
The invention relates to the technical field of constructional engineering, and discloses a high-performance concrete accelerator and a preparation method thereof, the high-performance concrete accelerator is prepared from the following raw materials by weight: 25-35 parts of a neutralizer, 10-20 parts of an auxiliary agent, 2-8 parts of an accelerator, 2-5 parts of a regulator, 2-5 parts of a compounding agent, and 35-55 parts of RO water. The neutralizing agent comprises sodium thiosulfate and sodium chromate, the molar mass ratio of the sodium thiosulfate to the sodium chromate is 2: 1, the auxiliary agent comprises sodium bicarbonate and calcium silicate, the molar mass ratio of the sodium bicarbonate to the calcium silicate is 1: 3, the accelerant comprises calcium phosphate and dimethyl oxalyl glycine, and the molar mass ratio of the calcium phosphate to the dimethyl oxalyl glycine is 2: 1. When the accelerator disclosed by the invention is used, thiosulfate radicals in the neutralizer can be combined with calcium ions in the auxiliary agent to form a complex which is difficult to decompose, so that the solidification of concrete is accelerated, and the working and using efficiency of the accelerator is improved.
本发明涉及建筑工程技术领域，公开了一种高性能混凝土速凝剂及其制备方法，该高性能混凝土速凝剂，按照重量份数其由下述原料配制而成：中和剂25‑35份，辅助剂10‑20份，促进剂2‑8份，调节剂2‑5份，配合剂2‑5份，RO水35‑55份。中和剂包括硫代硫酸钠和铬酸钠，硫代硫酸钠和铬酸钠的摩尔质量比为2：1，辅助剂包括碳酸氢钠和硅酸钙，碳酸氢钠和硅酸钙的摩尔质量比为1：3，促进剂包括磷酸钙和二甲基乙二酰基甘氨酸，磷酸钙和二甲基乙二酰基甘氨酸的摩尔质量比为2：1。本发明中的速凝剂在使用时，中和剂中的硫代硫酸根可以和辅助剂中的钙离子结合形成难以分解的络合物，加快混凝土凝固，提升该速凝剂的工作使用效率。
High-performance concrete accelerator and preparation method thereof
The invention relates to the technical field of constructional engineering, and discloses a high-performance concrete accelerator and a preparation method thereof, the high-performance concrete accelerator is prepared from the following raw materials by weight: 25-35 parts of a neutralizer, 10-20 parts of an auxiliary agent, 2-8 parts of an accelerator, 2-5 parts of a regulator, 2-5 parts of a compounding agent, and 35-55 parts of RO water. The neutralizing agent comprises sodium thiosulfate and sodium chromate, the molar mass ratio of the sodium thiosulfate to the sodium chromate is 2: 1, the auxiliary agent comprises sodium bicarbonate and calcium silicate, the molar mass ratio of the sodium bicarbonate to the calcium silicate is 1: 3, the accelerant comprises calcium phosphate and dimethyl oxalyl glycine, and the molar mass ratio of the calcium phosphate to the dimethyl oxalyl glycine is 2: 1. When the accelerator disclosed by the invention is used, thiosulfate radicals in the neutralizer can be combined with calcium ions in the auxiliary agent to form a complex which is difficult to decompose, so that the solidification of concrete is accelerated, and the working and using efficiency of the accelerator is improved.
本发明涉及建筑工程技术领域，公开了一种高性能混凝土速凝剂及其制备方法，该高性能混凝土速凝剂，按照重量份数其由下述原料配制而成：中和剂25‑35份，辅助剂10‑20份，促进剂2‑8份，调节剂2‑5份，配合剂2‑5份，RO水35‑55份。中和剂包括硫代硫酸钠和铬酸钠，硫代硫酸钠和铬酸钠的摩尔质量比为2：1，辅助剂包括碳酸氢钠和硅酸钙，碳酸氢钠和硅酸钙的摩尔质量比为1：3，促进剂包括磷酸钙和二甲基乙二酰基甘氨酸，磷酸钙和二甲基乙二酰基甘氨酸的摩尔质量比为2：1。本发明中的速凝剂在使用时，中和剂中的硫代硫酸根可以和辅助剂中的钙离子结合形成难以分解的络合物，加快混凝土凝固，提升该速凝剂的工作使用效率。
High-performance concrete accelerator and preparation method thereof
一种高性能混凝土速凝剂及其制备方法
YAN XIAOSHUAI (author) / YAN SHUAI (author) / WANG HONGYING (author) / WANG SICHEN (author)
2023-09-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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